package tt.dz.util;

import java.io.OutputStream;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletResponse;

import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletWebRequest;

import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.Border;
import jxl.format.BorderLineStyle;
import jxl.format.VerticalAlignment;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import tt.dz.entity.base.JsonCommon;

/***
 * @author pengyu
 */
public class ExportExcel {
	/***************************************************************************
	 * @param fileName
	 *            EXCEL文件名称
	 * @param listTitle
	 *            EXCEL文件第一行列标题集合
	 * @param listContent
	 *            EXCEL文件正文数据集合
	 * @return
	 */
	public final static String exportExcel(String fileName, String[] Title, List<Object> listContent,HttpServletResponse response) {
		String result = "系统提示：Excel文件导出成功！";
		// 以下开始输出到EXCEL
		try {
			// 定义输出流，以便打开保存对话框______________________begin
//			HttpServletResponse response = ServletActionContext.getResponse();
			OutputStream os = response.getOutputStream();// 取得输出流
			response.reset();// 清空输出流
			response.setHeader("Content-disposition",
					"attachment; filename=" + new String(fileName.getBytes("GB2312"), "ISO8859-1"));
			// 设定输出文件头
			response.setContentType("application/msexcel");// 定义输出类型
			// 定义输出流，以便打开保存对话框_______________________end

			/** **********创建工作簿************ */
			WritableWorkbook workbook = Workbook.createWorkbook(os);

			/** **********创建工作表************ */

			WritableSheet sheet = workbook.createSheet("Sheet1", 0);

			/** **********设置纵横打印（默认为纵打）、打印纸***************** */
			jxl.SheetSettings sheetset = sheet.getSettings();
			sheetset.setProtected(false);

			/** ************设置单元格字体************** */
			WritableFont NormalFont = new WritableFont(WritableFont.ARIAL, 10);
			WritableFont BoldFont = new WritableFont(WritableFont.ARIAL, 10, WritableFont.BOLD);

			/** ************以下设置三种单元格样式，灵活备用************ */
			// 用于标题居中
			WritableCellFormat wcf_center = new WritableCellFormat(BoldFont);
			wcf_center.setBorder(Border.ALL, BorderLineStyle.THIN); // 线条
			wcf_center.setVerticalAlignment(VerticalAlignment.CENTRE); // 文字垂直对齐
			wcf_center.setAlignment(Alignment.CENTRE); // 文字水平对齐
			wcf_center.setWrap(false); // 文字是否换行

			// 用于正文居左
			WritableCellFormat wcf_left = new WritableCellFormat(NormalFont);
			wcf_left.setBorder(Border.NONE, BorderLineStyle.THIN); // 线条
			wcf_left.setVerticalAlignment(VerticalAlignment.CENTRE); // 文字垂直对齐
			wcf_left.setAlignment(Alignment.LEFT); // 文字水平对齐
			wcf_left.setWrap(false); // 文字是否换行

			/** ***************以下是EXCEL开头大标题，暂时省略********************* */
			// sheet.mergeCells(0, 0, colWidth, 0);
			// sheet.addCell(new Label(0, 0, "XX报表", wcf_center));
			/** ***************以下是EXCEL第一行列标题********************* */
			for (int i = 0; i < Title.length; i++) {
				sheet.addCell(new Label(i, 0, Title[i], wcf_center));
			}
			/** ***************以下是EXCEL正文数据********************* */
			Field[] fields = null;
			int i = 1;
			for (Object obj : listContent) {
				fields = obj.getClass().getDeclaredFields();
				int j = 0;
				for (Field v : fields) {
					v.setAccessible(true);
					Object va = v.get(obj);
					if (va == null) {
						va = "";
					}
					sheet.addCell(new Label(j, i, va.toString(), wcf_left));
					j++;
				}
				i++;
			}
			/** **********将以上缓存中的内容写到EXCEL文件中******** */
			workbook.write();
			/** *********关闭文件************* */
			workbook.close();

		} catch (Exception e) {
			result = "系统提示：Excel文件导出失败，原因：" + e.toString();
			System.out.println(result);
			e.printStackTrace();
		}
		return result;
	}
	/**
	 * 导出excel
	 * @return
	 */
//	public String excelPage(HttpServletRequest request){
	public String excelPage(){
		ExportExcel excel=new ExportExcel();
		String str="";
		try {
//			str = new String(request.getParameter("wineOrg.orgName").getBytes("iso8859-1"),"UTF-8");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
//		wineOrg.setOrgName(str);
//		List<Object> li=service.exportExcel(wineOrg);
//		String[] Title={"机构ID","会员编号","类别","名称","省ID","省名称","城市ID","城市名称","详细地址","联系人","性别","联系手机","联系电话","传真","邮箱","QQ","生日","积分","客户等级","现金账户余额","结算方式","客户类型","购买次数","购买支数","创建人ID","创建人姓名","create_time","del","STS","备注","负责人ID","负责人姓名","审核标识","审核人ID	","审核人姓名","审核日期","分配人ID","分配人姓名","分配日期","修改人ID","修改人姓名	","修改时间"};
//		List<JsonCommon> li = new ArrayList<JsonCommon>();
		List<Object> li = new ArrayList<Object>() ;
//		List<Object> li = new List<Object>() ;
		JsonCommon jsonC = new JsonCommon();
		jsonC.setCode("222");
		jsonC.setMsg("中午点");
		li.add(jsonC);
		String[] Title={"机构ID","会员编号","类别",};
		HttpServletResponse resp = ((ServletWebRequest)RequestContextHolder.getRequestAttributes()).getResponse();
		excel.exportExcel("客户资料信息.xls",Title, li,resp); 
		return "ok";
	}
	public static void main(String[] args){
		ExportExcel exportExcel = new ExportExcel();//excelPage
//		HttpServletRequest req = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest(); 
		exportExcel.excelPage();
	}
}
